President Joe Biden speaks about the April jobs report in the East Room of the White House, Friday, May 7, 2021, in Washington. (AP Photo/Patrick Semansky)

FILE - In this April 28, 2021, file photo, U.S. Trade Representative Katherine Tai testifies during a Senate Appropriations subcommittee on Commerce, Justice, Science, and Related Agencies hearing on Capitol Hill in Washington. The Biden administration is throwing its support behind efforts to waive intellectual property protections for COVID-19 vaccines in an effort to speed the end of the pandemic. Tai announced the government's position in May 5 statement, amid World Trade Organization talks over easing global trade rules to enable more countries to produce more of the life-saving vaccines. (Sarah Silbiger/Pool via AP, File)

FILE - In this April 8, 2021, file photo, a Northwell Health registered nurses fills a syringe with the Johnson & Johnson COVID-19 vaccine at a pop up vaccination site at the Albanian Islamic Cultural Center in the Staten Island borough of New York. The Biden administration on Wednesday, May 5, joined calls for more sharing of the technology behind COVID-19 vaccines to help speed the end of the pandemic, a shift that puts the U.S. alongside many in the developing world who want rich countries to do more to get doses to the needy. (AP Photo/Mary Altaffer, File)